Continuity mistake: During the fourth course, after the gunshot happens, all the blood on the floor and kitchen bench disappears when the plates are about to be served. (00:42:12)
Suggested correction: This is simply because they very quickly and effectively clean the kitchen bench off-camera. That is why the man was standing on a sheet and they covered the open kitchen with a screen to catch the blood spatter. The blood on the counter was minimal and there was hardly any blood on the floor.